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Manufacturing · head to head

Paperless Parts vs Siemens WinCC Unified

Paperless Parts logo

Paperless Parts

Manufacturing

Quoting and estimating software for job shops, with geometry analysis and ITAR-aware handling

From
On request
Rated
-
Full reviewWebsite
Siemens WinCC Unified logo

Siemens WinCC Unified

Manufacturing

Siemens web-based HMI and SCADA platform, licensed by PowerTag count inside TIA Portal

From
On request
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Paperless Parts no pricing is published at any tier, and the mandatory implementation and data migration are quoted on top of the subscription, so the first-year cost is materially higher than the recurring one.; Siemens WinCC Unified licensing counts PowerTags, and archived tags are licensed separately from displayed tags, so a project that adds historian logging late can breach a tier and trigger an unbudgeted step-up purchase.
  • They diverge on capability: Paperless Parts covers Geometry analysis, Siemens WinCC Unified covers TIA Portal engineering.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Paperless Parts and Siemens WinCC Unified actually diverge.

Attributes where Paperless Parts and Siemens WinCC Unified differ
AttributePaperless PartsSiemens WinCC Unified
PlatformsWebWindows, Web, Linux

Identical on both: starting price (On request), pricing model (quote), free tier (No), user rating (Not yet rated), category (Manufacturing).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Paperless Parts

  • Geometry analysis
  • Costing rules
  • Customer portal
  • Quote revisions
  • ITAR-aware handling
  • ERP hand-off

Only in Siemens WinCC Unified

  • TIA Portal engineering
  • HTML5 runtime
  • PowerTag licensing tiers
  • Unified Comfort Panels
  • Parameter Control
  • Performance Insight
  • JavaScript scripting
  • OPC UA server and client

What people use each for

The jobs each tool is most often brought in to do.

Paperless Parts

  • A CNC machine shop losing RFQs because quotes take three days to return by emailnot Siemens WinCC Unified
  • A defence supplier that must process controlled RFQ files without exposing them to a generic cloud toolnot Siemens WinCC Unified
  • A fabricator standardising estimating so quotes do not vary by which estimator picked them upnot Siemens WinCC Unified
  • A contract manufacturer giving customers a portal to submit parts and receive prices themselvesnot Siemens WinCC Unified

Siemens WinCC Unified

  • A machine builder standardising on S7-1500 who wants HMI screens engineered in the same project as the PLC codenot Paperless Parts
  • Replacing a WinCC V7 plant SCADA before the 2027 support cut-off without changing controller vendornot Paperless Parts
  • A line supervisory system where operators and supervisors need browser access from tablets with no client software rolloutnot Paperless Parts
  • A plant already committed to the TIA Portal toolchain, where the cost of a rival SCADA is the second engineering environment and the second set of skills rather than the licencenot Paperless Parts

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Paperless Parts

  • No pricing is published at any tier, and the mandatory implementation and data migration are quoted on top of the subscription, so the first-year cost is materially higher than the recurring one.
  • The quality of automated quotes depends on costing rules the shop must write, which takes an experienced estimator out of production for weeks before the system is useful.
  • ERP and shop system integration is gated to higher tiers, so a small shop on the entry plan is still retyping won quotes into its job system.
  • Geometry analysis handles prismatic machined and sheet metal parts well but struggles with complex organic surfaces, weldments and assemblies, which still need manual estimating.
  • Once costing logic and quote history live in the platform, moving to another system means rebuilding the rules from scratch, which is a strong practical lock-in beyond the contract term.

Siemens WinCC Unified

  • Licensing counts PowerTags, and archived tags are licensed separately from displayed tags, so a project that adds historian logging late can breach a tier and trigger an unbudgeted step-up purchase.
  • There is no migration tool that converts a WinCC V7 project to Unified, so leaving the classic line before its 2027 support end means rebuilding screens, scripts and alarm configuration by hand.
  • Scripting moved from VBScript to JavaScript, which invalidates the script libraries in-house engineers accumulated over a decade on classic WinCC.
  • It is effectively bound to the Siemens controller stack; connecting Rockwell or Mitsubishi PLCs works through OPC UA but loses the shared tag database that is the main reason to buy it.
  • Three unrelated products share the WinCC name, and buyers who specify WinCC without saying Unified, V7 or OA regularly receive quotes for the wrong platform with different licensing and a different contractor pool.

Pricing, plan by plan

Paperless Parts

On request
  • Basic$undefined/year
    • Quoting and geometry analysis
    • Customer portal
    • For small job shops and contract manufacturers
  • Pro$undefined/year
    • Integrations with ERP and shop systems
    • Deeper costing configuration
    • For mid-sized manufacturers
  • Enterprise$undefined/year
    • Controlled data handling for defence and aerospace
    • Multi-site and multi-process support
    • Priority support and dedicated onboarding

Siemens WinCC Unified

On request
  • WinCC Unified$undefined/year
    • Engineering licence per seat within TIA Portal
    • Runtime licensed in PowerTag tiers, from 100 tags to unlimited
    • Archived tags licensed separately from displayed process tags

Which should you pick?

Choose Paperless Parts if

  • You need geometry analysis.
  • You also want costing rules.
Paperless Parts review

Choose Siemens WinCC Unified if

  • You need tia portal engineering.
  • You work on Windows, Web, Linux.
  • You also want html5 runtime.
Siemens WinCC Unified review

Questions people ask

Is Paperless Parts or Siemens WinCC Unified better?
Neither clearly leads. Paperless Parts starts at On request and Siemens WinCC Unified at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Paperless Parts or Siemens WinCC Unified?
Paperless Parts starts at On request and Siemens WinCC Unified at On request.
Does Paperless Parts or Siemens WinCC Unified run on more platforms?
Paperless Parts runs on Web. Siemens WinCC Unified runs on Windows, Web, Linux.
What is Paperless Parts best used for?
Paperless Parts is most often used for a cnc machine shop losing rfqs because quotes take three days to return by email, a defence supplier that must process controlled rfq files without exposing them to a generic cloud tool, a fabricator standardising estimating so quotes do not vary by which estimator picked them up, a contract manufacturer giving customers a portal to submit parts and receive prices themselves. Of those, a cnc machine shop losing rfqs because quotes take three days to return by email and a defence supplier that must process controlled rfq files without exposing them to a generic cloud tool are not what Siemens WinCC Unified is typically brought in for.
What can Paperless Parts do that Siemens WinCC Unified cannot?
Paperless Parts covers Geometry analysis, Costing rules, Customer portal, Quote revisions. Siemens WinCC Unified covers TIA Portal engineering, HTML5 runtime, PowerTag licensing tiers, Unified Comfort Panels.

Answered from the vendors’ own pages

Paperless Parts: How much does Paperless Parts cost?

It does not publish pricing. Expect a tiered annual subscription plus a separately quoted implementation and data migration.

Siemens WinCC Unified: Should I buy WinCC Unified or WinCC V7?

Unified, for any new project. V7 and V8 receive no new features and support ends in 2027.

Paperless Parts: Does it quote automatically without setup?

No. It applies your costing rules to analysed geometry, and those rules have to be built with your estimator during implementation.

Siemens WinCC Unified: Is WinCC OA the same product?

No. WinCC OA came from ETM, has its own engineering environment and licensing, and is aimed at very large distributed systems. It shares only the brand.

Paperless Parts: Can it handle ITAR-controlled RFQs?

It markets controlled data handling for defence and aerospace work, which is a main reason regulated shops choose it over generic quoting tools.

Siemens WinCC Unified: What is a PowerTag?

An externally connected process variable in the runtime. Internal tags do not count, but archived tags are licensed separately from displayed ones.

Paperless Parts: Will it integrate with my shop ERP?

Integrations exist but are gated to the higher tiers, so confirm your ERP is covered at the tier you are quoted.

Siemens WinCC Unified: Can operators use it from a browser without installing anything?

Yes, the runtime is HTML5, but concurrent browser clients need WebUX or Unified client licences.

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